The catalyst is a twisted chair structure and reacts with borane at the N site of the catalyst to form catalyst borane adduct. The formation reaction is exothermic.
催化剂具有扭曲的椅式构型，与硼烷在N原子处配位形成加合物，反应是放热的。
This chair first introduces the structure and types of optical fiber, then describes transmission principle, characteristics and application of optical fiber.
首先介绍光纤结构和类型，然后阐述光纤传输的原理、特性和应用。
When the goods box is not used, the foldable goods box for the chair in the structure can be folded so as to save space.
该结构的椅子可折叠的物品箱，若不使用物品箱时可将其折叠起来，减小所占空间。
Through the analysis of forming technology of regulator of left chair, the method of using two sets of compound die is put forward. The specific die structure and its work pro - cess are introduced.
通过对左座椅调整器的成形性工艺分析，提出了采用两套复合模结构的方法，并介绍了模具的具体结构及模具工作过程。
The utility model relates to a torque force regulating mechanism of chair carrier restoring torsion spring, which belongs to the technical field of improved structure of a chair carrier.
本实用新型涉及一种椅子托盘复位扭簧扭力调节机构，属于椅子托盘结构改进的技术领域。
The portable chair of the invention has simple structure, is convenient for use and can be opened and used for rest at any time while people are outgoing.
本发明结构简单，携带方便，可在外出时方便地开打使用，随时进行休息。
The invention solves the problems in the prior art and provides the baby rocking chair which has novel structure and better comfortableness.
本发明解决了现有技术的问题，提供了一种结构新颖、舒适性较好的婴儿摇椅。
The present invention discloses a rocking chair baby walker with notch grafting structure chassis.
本发明公开了一种底盘为嵌卡结构的摇椅学步车。
The present invention discloses a rocking chair baby walker with notch grafting structure chassis.
本发明公开了一种底盘为嵌卡结构的摇椅学步车。
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